Power Supply Block Diagram - JVC LT-19D200 Service Manual

POWER SUPPLY BLOCK DIAGRAM

CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
HOT CIRCUIT. BE CAREFUL.
!
! ! !
AC601
AC CORD F601 L601 D601- D604
4A/125V
LINE BRIDGE
FILTER RECTIFIER
4A/125V
!
Q601
SWITCHING
!
Q602
SWITCHING
CONTROL
MAIN PWB
4A/125V
!
T601
2 11
15
3 10
9
16
4
14
7
13
6
12
!
IC601
4 1
3 2
Q631
FEED
BACK
Q634
HOT COLD
+5V REG.
(No.YA711<Rev.001>)2-9
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
Q206
SW-7.1V
Q205
SW+24.5V
Q202,Q203
SWITCHING
Q402
Q201,D202
SW+13V
Q905
SW+9V
Q904,D906
SW+3.3V
Q903,D905
SW+3.3V
Q641
SW+9V
Q901,Q902 IC901
SWITCHING +1.2V REG.
Q640,D662
SW+3.3V
Q638,Q639
SWITCHING
Q637
SW+5V
Q633
Q635,Q636
SW+5V
IC631
+3.3V
3 2
REG.
2-10(No.YA711<Rev.001>)
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
LCD PANEL UNIT
CN201
8 PANEL-7.1V
2,3 PANEL+13V
4 PANEL+24.5V
6,7 P-ON+3.3V
10 VCOM
CN301 CN3701
DIGITAL MAIN PWB UNIT
10 P-ON+3V 10
16 P-ON+7V 16
21,22 AL+3.3V 21,22
19,20 P-ON+3.3V 19,20
13,14 P-ON+5V 13,14
CN901 CN401
DVD MAIN PWB UNIT
1 AL+3.3V 1
9 DVD-ON+3.3V 9
6~8 EV+3.3V 6~8
10 DVD-ON+5V 10
11,12 EV+9V 11,12
4,5 EV+1.2V 4,5
DVD-MAIN-PWR
P-ON-H1
P-ON-H2
PROTECT1
PROTECT2
VCOM
P-ON+3V
P-ON+7V
AL+3.3V
P-ON+3.3V
P-ON+5V
AL+3.5V
DVD-ON+3.3V
EV+3.3V
DVD-ON+5V
EV+9V
EV+1.2V
PANEL+13V
P-ON+3.3V
P-ON+9V
AL+33V
P-ON+5V
SP+14V
TUNER+5V
AL+3.3V
TO SYSTEM
CONTROL
BLOCK
DIAGRAM